Modern attackers don’t hack in—they log in. Groups like Scattered Spider, Midnight Blizzard, and BlackBasta exploit identities and cloud systems, bypassing measures like MFA and EDR. Halberd, a free open-source tool by Vectra AI, helps security teams test their defenses against attack techniques across Microsoft 365, Microsoft Entra ID (formerly Azure AD), Microsoft Azure and AWS —all in one platform through adversary emulation.